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2. Kori-xr Pre-installation Check List
2.1
Recommended computer specification for Kori-xr control
The minimum PC specifications are:
CPU
2 GHz Pentium (or equivalent)
RAM
1 GB
Free Disk Space
40 MB (for installation)
Operating system
Windows 7 (32 & 64 bit)
Minimum resolution
1024 x 768
Other requirements
Windows compatible keyboard and mouse, one free USB port.
2.2
Services
2.2.1
Power
Kori-xr is automatically compatible with all conventional mains power supplies ranging from 100 to 240 V
and 50 or 60 Hz. It is not necessary to manually select or switch voltages. The maximum power
consumption of Kori-xr is 650 W.
2.2.2
Pressure controlled supply of dry air or nitrogen (purge gas)
Kori-xr requires a pressure-regulated supply of dry air or nitrogen (dewpoint lower than -50°C) at between
50 and 60 psi both to actuate the main valve and to purge the cold trap box.
It is recommended that a secondary pressure regulator be used to control the supply of dry gas to Kori-xr
in addition to that controlling the general laboratory line pressure. Any conventional pressure regulator
should suffice for this and suitable pneumatic control may already be available on your GC. Alternatively,
Markes International can supply a pneumatic control accessory (U-GAS01) for both air and carrier gas. It
is recommended that the purge gas is shared with the UNITY-xr or UNITY 2 via a plug-in Y-fitting connected
to the UNITY-xr or UNITY 2.
It is recommended that the pressure in the laboratory purge gas line be at least 10 psi higher than that
supplied to Kori-xr.
2.2.3
Pressure controlled carrier gas supply
Kori-xr requires a regulated supply of carrier gas at a pressure to suit the analytical column / system
selected. 5.0 grade (i.e. 99.999%) or higher purity helium / nitrogen is recommended.
Previously approved and correctly rated external gas regulator should be used with this unit. Maximum
inlet pressure must not exceed 60 psi.
The pressure in the laboratory carrier gas line should be at least 10 psi higher than that supplied to Kori-
xr.
Markes International Ltd
T: +44 (0)1443 230935 F: +44 (0)1443 231531 E: enquiries@markes.com
www.markes.com
QUI-1138
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